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(No Model.)

R. M. ROSE'.

- SEAL LOOK.

No. 392227. Patented Nov. 6, 1888.

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WITNESSES: INVENTOR:

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REUBEN M. ROSE, OF NORWALK, CONNECTICUT.

SAL LCK.

SPECIFICATION fo'ming part of Letters Patent No. 392227 date& November 6, 1888.

Application filed June 18, 1837.

.To aZZ whom, ir; may concern.-

Be it known that I, REUBEN M. Rosa, of Norwalk, in the county of Fairfield and State of Connecticut, have invented a new and Improved Seal-Lock, of which the following is a specification, reference being had to the annexed drawings, forming a part thcreof, in which- Figure 1 is a side elevation of my improved lock. Fig. 2 is a trausverse section taken on line w x in Fig. 1, and Fig. 3 is a longitudiual section taken on line y y in Fig. 2.

Similar letters of reference indicate corresponding parts in all the figures.

The object of my invention is to provide a simple spring-lock for application to freightcars, the doors of buildings, to gates, and for similar uses, which may be locked by pressing the shackle into the body of the lock, and from which the shackle cannot be released without breaking some portions of the lock; also, to .provide means for making a record of inspectors who cxamined the locks.

My invention consists in a mortised bar provided with spring-catches and in a shackle adapted to fit into the mortises of the bar and to be engaged by the spring-catches when the shackle is inserted in the mortises.

. It also consists in providing the shackle with a thin tab or plate, which may be readily punched by the lock-inspector.

In carrying out my invention I preferably make the shackle A and the bar B of materia1- such as cast-iron or type-metal-which may be readily broken, and I form upon the faces of the bar B characters or letters indicating ownership of the lock, and preferably number the locks consecutively, so that they may not be duplicated.

The bar B is provided with mortises a near each end, having at the sides recesses b, which contain flat springs c, Secured in place in the process of casting the metal surrounding the fixed end of the spring. To diminish the Weight and the eXpense of mauufacturing the bar B, and to facilitate breaking it, its central portion is made hollow, and the side walls are connected at the bottom of the bar by a crossbar, d.

The shackle A is provided with shoulders e, which are of sufficient size to cover the mortises a, and the portions f of the shackle Serial No. 241.911. (Ne model.)

lying between the shoulders c and the extremities of the shackle are made square and provided with notches g in their outer faces. The extremites h of the shackle are preferably made cylindrical with a thin tab, h', formed thereon or attached thereto, and the bottom of each mortise a is provided with a plate, 2 having a circular aperture adapted to receive the eX- tremity h of the shackle.

The lock is appled by inserting the shackle A in two staples, or in a staple upon which is received a hasp, and pressing the bar B forward upon the extremities of the shackle until the springs c slip into the notches g of the square ends of the shackle, as shown in Fig. 3. The engagement of the said springs with the shackle prevents the shackle from being withdrawn from the bar B, and, as there are no apertures for the insertion of a key or other implement for forcing back the springs c, it is impossible to open the lock without breaking either the shackle A or the bar B.

hen the lock is used on a railroad, the tab h' is to be punched by the inspectors who eX- amine the locks at the different Stations, and, as the inspectors use different punches, the examination of the tab will show which of the inspectors have passed the lock.

By making angular mortises in the bar B and giving the ends of the shackle A a form corresponding to the mortises it is impossible to turn the ends of the shackle even when it is broken or cut at the center.

The lock is made of sufficient size to rcnder it conspicuous when applied, so that if removed from the staple or other fastening its absenee will be noticeable.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In a spring-lock, the combiuation of a shackle provided with polygonal notched ends and a bar having angular mortises adapted to receive the polygonal ends of the shackle, and provided with springs adapted to eugage the notches of the shackle, substantially as described.

2. The combination, with the mortised bar B, provided with flat sprngs c, of the shackle A, having notched ends, and provided with the tabs h', substantially as specified.

3. Iu'a lock, the combination of the shackle ICO A, provided with the shoulde's c, polygonal 5. A shackle for seal-locks provided with o notched portions f, and cylindrical ends h, and tabs, substantidi y :s described. the mortised bar B, provided with the flat springs c and made hollow in the central part, REUBEN M. ROSE. 5 sbstantial] y as described.

4. In t seni-lock, the combination, with the fitnessesz bar or czsing, of the frangible shaekle co- GEO. M. HOPKINS, sti-acted to be Secured to said hm' or cnsing, C. SEDGWICK. substantizdiy as set fo'th. 

